<template>
    <div>
        <!-- 面包屑导航 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>数据统计</el-breadcrumb-item>
            <el-breadcrumb-item>数据报表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图区 -->
        <el-card>
            <!-- 为Echarts准备一个具备大小的Dom -->
            <div id="main" style="width: 800px; height: 400px;"></div>
        </el-card>
    </div>
</template>

<script>
import * as echarts from 'echarts'
// import _ from 'lodash'

export default {
  data () {
    return {
      options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    }
  },
  created () {},
  async mounted () {
    // 页面元素渲染完毕后执行
    // 基于准备好的dom，初始化echarts实例
    const myChart = echarts.init(document.getElementById('main'))
    // 准备数据和配置
    // const option = {
    //   title: {
    //     text: 'Echarts 入门示例'
    //   },
    //   tooltip: {},
    //   legend: {
    //     data: ['销量']
    //   },
    //   xAxis: {
    //     data: ['衬衫', '羊毛衫']
    //   },
    //   yAxis: {},
    //   series: [{
    //     name: '销量',
    //     type: 'bar',
    //     data: [5, 20]
    //   }]
    // }
    const { data: res } = await this.$http.get('reports/type/1')
    if (res.meta.status !== 200) {
      return this.$message.error(res.meta.msg)
    }
    // const result = _.merge(res.data, this.options)
    const result = { ...this.options, ...res.data }
    // 展示数据
    myChart.setOption(result)
  },
  methods: {}
}
</script>

<style lang="less" scoped>
</style>
